Question

pt1.
a. the number of grams of KNO3 at 100°C which will dissolve in 100g of H2O at 100°C
b. the number of grams of water which are required to dissolve 25g of KNO3 at 100°C
c. the number of grams of water which are required to dissolve 2.0g of CuSO4•5H2O at 100°C
pt1 answers
a. 240 g
b. 10 g
c. 1.1 g
d. 11.1 g

pt2.
take the solution to problem 1d, add 10mL of deionized water, and cool the solution to 0°C
a. how much KNO3 remains in the solution
b. how much KNO3 crystallizes out
c. how much CuSO4•5H2O crystallizes out
d. what percentage of KNO3 is recovered from original 25 grams

I need answers for pt2.
solubility in solute/100g H2O is 20 g KNO3 for 0°C
solubility in solute/100g H2O is 240 g KNO3 for 100°C
solubility in solute/100g is 10 g CuSO4•5H2O for 0°C
solubility in solute/100g H2O is 180 g CuSO4•5H2O for 100°C

Answer 1

Well, well. You didn't type the problem in 1d; you typed only the grams and I assume that's grams CuSO4.5H2O